Study on Nanoparticles in Surface Media of Ore Deposits

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Crystallography and Physical Chemistry of Minerals & Nanominerals".

Deadline for manuscript submissions: closed (17 May 2023) | Viewed by 1943

Special Issue Editors


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Guest Editor
School of Earth Sciences and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
Interests: theory and technology of nanoparticle prospecting for concealed deposits; formation and migration of nanoparticles

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Guest Editor
School of Earth Sciences and Engineering, Sun Yat-Sen University, Guangzhou 510120, China
Interests: low-temperature chronology methods and their applications in structural geology, geomorphological evolution, and mineral exploration
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Special Issue Information

Dear Colleagues,

Research on nanogeoscience has made rapid developments. In particular, nanoparticles in the surface media of ore deposits have been studied in depth. Based on the discovery of metallic nanoparticles in the surface media of concealed deposits, the nanoparticle prospecting technology for concealed deposits has been invented. Significant advances in the change law of the composition and structure of nanoparticles from the concealed ore bodies to the surface have been made. The prospecting significance of the size, shape, chemical composition, structure, and biological effects of nanoparticles in soil gas–solid, animal, plant, groundwater, and other media has been investigated. Existing studies also include the formation and migration of nanoparticles relating to concealed ore bodies, capture and test methods of nanoparticles, and the impact of nanoparticles on the ecological environment. The aim of this Special Issue is to summarize the research results, gain a better insight into the nature behaviour of nanoparticles, and establish the research direction of surface or near surface nano-geochemistry. The topics of interest for publication include, but are not limited to, the following:

  • Technology of nanoparticle prospecting for concealed deposits;
  • Change law of the composition and structure of nanoparticles from the concealed ore bodies to the surface;
  • Nanoparticles in soil gas–solid, animal, plant, groundwater, and other media;
  • The size, shape, chemical composition, structure, and biological effects of nanoparticles in surface media;
  • The formation and migration of nanoparticles related to concealed ore bodies;
  • Capture and test methods of nanoparticles;
  • The impact of nanoparticles related to concealed deposits on ecological environment.

Prof. Dr. Jianjin Cao
Dr. Ruxin Ding
Guest Editors

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Keywords

  • nanoparticles
  • ore deposits
  • prospecting
  • chemical composition
  • structure
  • formation
  • migration
  • biological effect
  • environmental risks
  • surface media

Published Papers (1 paper)

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Research

23 pages, 20692 KiB  
Article
Characteristics of Naturally Formed Nanoparticles in Various Media and Their Prospecting Significance in Chaihulanzi Deposit
by Meiqu Lu, Jianjin Cao, Zhengyang Wang and Guoqiang Wang
Minerals 2022, 12(10), 1289; https://doi.org/10.3390/min12101289 - 13 Oct 2022
Cited by 3 | Viewed by 1434
Abstract
In recent years, the exploration of concealed deposits has become extremely urgent as the shortage of surface resources worsens. In this study, naturally formed nanoparticles in five media (deep-seated fault gouge, ascending gas flow, soil, shallow groundwater and deep groundwater) in Chaihulanzi Au [...] Read more.
In recent years, the exploration of concealed deposits has become extremely urgent as the shortage of surface resources worsens. In this study, naturally formed nanoparticles in five media (deep-seated fault gouge, ascending gas flow, soil, shallow groundwater and deep groundwater) in Chaihulanzi Au deposit, China, were analyzed by transmission electron microscopy. The characteristics of category, shape, lattice parameters, chemical component and association were obtained. The results show that deep media can carry natural nanoparticles to the surface media, resulting in an increased proportion of O and metal chemical valence such as Pb and Cu in nanoparticles. The metal elements Au, Ag, Cu, Zn and As in nanoparticles correspond to those of orebody minerals. Au-Ag-Cu, Fe-As, Cu-Sn and Pb-Zn element associations in nanoparticles are similar to those of mineral composition or orebody paragenesis in Chaihulanzi deposit. Compared with nanoparticle characteristics in deposit and background areas, it can be deduced that natural ore-bearing nanoparticles come from concealed orebodies. With the characteristics of more oxide forms and the dislocation of the crystal lattice, these nanoparticles are formed by faulting and oxidation. Nanoparticles produced in concealed orebodies that migrate from the deep to the surface media could be used for prospecting. Full article
(This article belongs to the Special Issue Study on Nanoparticles in Surface Media of Ore Deposits)
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